US PATENT SUBCLASS 172 / 677
WITH DRAFT DETAIL
Current as of: June, 1999
Click HD for Main Headings
Click for All Classes
DEFINITION
Classification: 172/677
(under the class definition) Apparatus comprising some detail of the means for hitching an implement to a separate propelling means, or to another implement, the hitch being of the type premitting some freedom of movement between the propelling means and the apparatus while the apparatus is being moved over the earth to perform its earthworking function.
SEE OR SEARCH THIS CLASS, SUBCLASS:
7+, for draft responsive automatic power control.
76+, for an implement with a driven tool and ground support hitched to a vehicle by an articulated connection.
204+, for implements alternating for right or left hand operation and having various hitch details.
238, for a ground support moved vertically relative to a frame by draft force.
239, for an implement with draft, pitch, or ground-level responsive depth control. 248, for apparatus convertible or changeable to different
types of hitch.
257, for a propulsion unit which is part of an articulated vehicle.
261+, for hitches involving overload shifting.
272+, for means to facilitate mounting an implement on a vehicle.
282+, for a trailing implement with a wheel responding to turning movement of a propelling means.
315+, for an actuator on a trailing implement controlled from a propelling vehicle.
317+, for an actuator on a vehicle for relatively moving parts of a trailing implement.
321, for an actuator on a vehicle for moving a wheeled implement.
324+, for an actuator on a trailing ground- supported frame for moving the draft means laterally or vertically.
332, for implements manipulated with respect to a mounting frame, the frame usually trailing behind a propelling animal or a tractor.
351+, for an implement guided by a walking attendant and having a hitch. 439+, for a mash-type hitch.
452+, for a hitch comprising an actuator adapted to lift a tool for transport on a wheeled frame or broadly claimed implement.
588, for horizontally, angularly adjustable groups of disks with a hitch longitudinally movable on a tongue.
605, for an apparatus comprising a shiftable hitch moving a tool relative to a frame.
618, for implements which assume different angularity for opposite draft.
624+, for plural tool groups movably connected to a forward transverse draft bar.
630, for tool groups pivoted to opposite sides of a longitudinally draft bar.
810+, for a tool hitched ahead of a motor vehicle.
SEE OR SEARCH CLASS
278, Land Vehicles: Animal Draft Appliances, appropriate subclasses, for that portion of a vehicle or broadly claimed earth working implement by means of which the pull of draft animals is utilized to move the apparatus over the ground.
280, Land Vehicles, 400+, for hitches between articulated vehicles.
